Not all sellers present diamond grading lab stories (aka diamond high quality stories) to their customers. So my basic recommendation to you is to maintain your cash in your pocket when coping with such jewelers.
Solely buy a diamond engagement ring if it comes with the unique diamond high quality report.
A lab report is an unbiased analysis of the 4Cs of a free diamond and features a plotted diagram of the stone’s readability traits and a graphic illustration of the stone’s proportions. Having such a report lets you examine diamonds of various qualities and in the end helps you make a extra knowledgeable shopping for choice diamond.
A retailer could lower corners and never present a lab report or an unscrupulous vendor could present a pretend one due to the time, hassle and expense he’ll bear to getting a stone graded.
Yeah – there’s a value for grading a diamond (although that price is finally paid by the patron), plus the delivery and insurance coverage expenses for sending the diamond to the lab. And allow us to not overlook the chance price of a jeweler not having the diamond in his retailer on the market for a number of weeks whereas the grading takes place.
Nonetheless, a diamond grading report might also not be accessible as a result of the prices to getting one could impression too closely on the ultimate value of the ring.
For instance, a Zero.3ct diamond ring costing $250 say, could price round $75 to be graded and have the report quantity inscribed on the girdle on the diamond.
As you seek for that splendid diamond engagement ring in your sweetheart, you will discover that there’s an alphabet soup of labs claiming to supply respected diamond grading stories. However I might solely put my cash on…
The Premier Diamond Grading Lab Stories
Sure, all diamond high quality stories usually are not created equal. Throughout the trade, it’s a consensus that the 2 premier labs are GIA-GTL (Gemological Institute of America’s Gem Commerce Lab) and the AGS (American Gem Society Laboratories).
The GCAL (Gem Certification and Assurance Lab) additionally presents extremely regarded stories or “diamond certificates” as they’re referred to by GCAL.
The GIA has the strongest international fame for independence and consistency. On account of their fixed coloration and readability strictness tips, the globe’s largest and most costly diamonds have been despatched there for grading many years. In 2006, GIA-GTL added a two-dimensional lower grading system for spherical good diamonds.
AGS makes use of the strictest lower requirements within the trade. It makes use of a three-dimensional mild efficiency metric that may grade a number of diamond shapes. Actually, it’s the solely lower grading system that’s acknowledged by the scientific group.
What’s extra, its Diamond High quality Doc makes use of a novel and proprietary Zero to 10 grading system to guage the four Cs – a system which is less complicated to grasp than GIA’s grading system. Actually, AGS even goes the additional step by equating their Zero-10 score scale to different types of score.
For instance, the traditional VS1 diamond readability score is a three on the AGS Diamond High quality Doc.
Diamond Reporting – The Drawbacks
1. Diamond grading shouldn’t be standardized or regulated and therefore you might come throughout tier 2 labs that make use of looser tips to the tier 1 grading labs talked about above.
Should you purchase a diamond that has been graded by a tier 2 lab, you might find yourself paying extra for a lesser high quality diamond. So for instance, a diamond rated a “F” in coloration at a tier 2 lab could get a G, H, or decrease coloration score at a extra respected lab.